<!doctype html>
<html>

<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1, minimum-scale=1, maximum-scale=1">
    <title>Hello CSS</title>
    <link rel="stylesheet" href="../reset.css">
    <link rel="stylesheet" href="./03-三角形.css">
</head>

<body class="flex-ct-x">
    <div class="triangle"></div>
</body>

</html>
